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ITINERA: Integrating Spatial Optimization with Large Language Models for Open-domain Urban Itinerary Planning

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arxiv 2402.07204 v5 pith:ZKNQ3P5D submitted 2024-02-11 cs.AI cs.CLcs.LG

classification cs.AIcs.CLcs.LG
keywords urbanitineraitineraryitinerarieslanguageoptimizationplanningrequests
verification ladder T0 review T1 audit T2 compute T3 formal

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Citywalk, a recently popular form of urban travel, requires genuine personalization and understanding of fine-grained requests compared to traditional itinerary planning. In this paper, we introduce the novel task of Open-domain Urban Itinerary Planning (OUIP), which generates personalized urban itineraries from user requests in natural language. We then present ITINERA, an OUIP system that integrates spatial optimization with large language models to provide customized urban itineraries based on user needs. This involves decomposing user requests, selecting candidate points of interest (POIs), ordering the POIs based on cluster-aware spatial optimization, and generating the itinerary. Experiments on real-world datasets and the performance of the deployed system demonstrate our system's capacity to deliver personalized and spatially coherent itineraries compared to current solutions. Source codes of ITINERA are available at https://github.com/YihongT/ITINERA.

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Forward citations

Cited by 4 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. DeepTravel: An End-to-End Agentic Reinforcement Learning Framework for Autonomous Travel Planning Agents

    cs.AI 2025-09 conditional novelty 6.0 of 10

    An RL framework with a travel sandbox, verifier-based rewards, and failure replay produces a deployed travel-planning agent that outperforms frontier LLMs on internal benchmarks.

  2. Toward LLM-Agent-Based Modeling of Transportation Systems: A Conceptual Framework

    cs.AI 2024-12 conditional novelty 5.0 of 10

    LLM-driven agents with profiles, memory, and feedback loops can generate plausible daily travel activities and learn to adjust commute timing in a small proof-of-concept, pointing toward a new direction for agent-base...

  3. Think2Go: Generative Next POI Recommendation with LLM Reasoning

    cs.IR 2026-07 conditional novelty 4.0 of 10

    Think2Go couples SFT and RL-based reasoning in one LLM, with KDE- and reward-gap-based advantage calibration, and reports state-of-the-art Acc@1 on NYC, Tokyo, and California check-in data.

  4. Large language models for artificial general intelligence (AGI): A survey of foundational principles and approaches

    cs.AI 2025-01 conditional novelty 3.0 of 10

    This survey argues that embodiment, symbol grounding, causality, and memory are the foundational principles needed to make large language models achieve artificial general intelligence.

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